Just for peace of mind, I would check the relay for the cooling fan and the coolant temperature sensor with a multimeter. The temp sensor is supposed to trip the relay and cause the fan to run and cool the engine when the coolant temp reaches a certain point. If you register your vehicle at autozone.com, you will have access to a free online repair manual for your particular vehicle and will help you in finding components. It is free. Hope this helped.

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Larry, If the cooling system was not bled properly, the temperature could fluctuate up to 3/4 then normally back down to 1/8 on temp gage.
If your gage is just staying a little over half when running, that is actually normal and acceptable.

The fans are normally thermostatic - which means they only operate above a certain air temperature. If the air coming across the radiator is below a pre-determined temperature, they will not operate.
If the temperature gauge was only half way they may not have reached the required temperature to turn on.
When you are travelling the movement of the car usually provides enough air across the radiator to keep it cool enough - when you stop and they is no moving air, the fans will normally come on then.

You may or may not have a problem with the fan. It should come on around 220 degrees or when the ac is running.The temp on the gauge and the temp the computer sees can be 10 or 15 degrees different either way.

Assuming that you already checked for the engine oil and the radiator coolant level, and if they are ok, then open the hood of your car and start your engine, then go to the front of your car and watch out for the fans, they are gonna be off when you start your car, but keep looking at them they should activate when the engine is hot enough. They should activate just before your water temperature gauge (instrument pannel) reach half of the way. If the temperature gauge goes beyond that (overheating) and the fan hasn't activated yet then two things can be wrong your water thermostat (makes the fans activate when your car reaches aproximately 90°C) or your fans could be burned.
I hope that helps

It would not be abnormal, so long as the fan does not come on when you
switch on from cold. The fan's job is to draw air through the radiator
to cool the contained liquid to a suitable working temperature. The fans
sensor is activated by the temperature of the coolant. If this is a
problem which worries you, try driving
as gently and slowly as possible for the last mile or two of your
journey. If things are normal the fan should not run on switch-off as
that 'trick' will have allowed the coolant to get below the fan-kick-in
temperature before you stop the engine. If your vehicle has a
temperature gauge use the rteading as an indication.

Slowly fill the cooling system with a 50/50 coolant mixture until coolant runs freely out of bleeder screws. Close the cooling system bleeder screws Install the coolant pressure cap Start the engine. Run the engine at 2,000 - 2,500 RPM until the engine reaches normal operating temperature. (midway on gauge)Allow the engine to idle for 3 minutes. Shut the engine off. Allow the engine to completely cool. Top off the coolant as necessary.
Run engine again at 2000 - 2500 RPM until the engine reaches normal operating temperature.
Allow engine to idle until cooling fans come on. It should come on with the gauge about 3/4 of the way to red. - if it gets to where is touches the red, shut down immediately.
When the fan comes on, put your hand behind the fan and observe the temperature of the air coming from the fan. It should feel hot. If it is blowing cold air, the coolant is not circulating through the radiator like it should. This could be caused by lots of things including an improper/defective thermostat, corroded water pump impeller, or a blown head gasket.

The cooling fans on this vehicle won't come on unless the a/c is on or until the engine coolant temperature reaches about 220 degrees. Once the coolant has reached this temperature the fans will come and and run until the engine cools down to about 210 degrees and they will then turn off until the temperature climbs up again. The fans usually aren't on at all at highway speeds because enough air is being forced through the radiator to keep everything cool. The true test of cooling fan operation is to allow the car to idle in park with both the a/c and defrost turned off and let it run until the fans come on. When The temp gauge reaches about 3/4 of the way up, give or take a bit, the fans should come on. Keep an eye on the gauge so the engine doesn't overheat just in case there really is a fan control problem but I'd say you'll most likely find that the fans are working properly since they do come on for the a/c. Hope this helps!

Hi, the fans are controlled from the engine ECU. The ECU recieves a signal fron the temperature sender unit which will then switch on the fans. The sender unit also controls the temperature gauge. Have a look at the fuses before you replace the temp sender unit as it might be a blown fuse. Most of the circuits are intergrated and running through different fuses. I hope this helps.